IAM Users, Groups, and Roles

IAM users, groups, and roles are the standard mechanisms for managing identity
and authentication in AWS. You can use them to connect to AWS IoT HTTP interfaces
using the AWS SDK and CLI.

IAM roles also allow AWS IoT to access other AWS resources in your account on your
behalf. For example, if you want to have a device publish its state to a DynamoDB
table, IAM roles allow AWS IoT to interact with Amazon DynamoDB. For more information,
see
IAM
Roles.